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Improved Block Stagewise Regularized Orthogonal Matching Pursuit Image Reconstruction Method

Authors

Xiong-yong Zhu1, Shun-dao Xie2,3, Guo-ming Chen1, Liang Xue1, Wen-fang Wu2, Hong-zhou Tan2,3, 1Guangdong University of Education Guangzhou, China, 2Sun Yat-Sen University Guangzhou, China and 3SYSU-CMU Shunde International Joint Research Institute, China

Abstract

Traditional methods to signal acquisition need to collect large amounts of redundant data, and then compress the data to extract useful information, which is inefficient and requires large amount of storage resources. Compressed sensing (CS) can avoid sampling the redundant data; it obtains the discrete signals at the sampling rate that is lower than the Nyquist sampling rate, and reconstructs the original signal with high probability. Based on CS, Block Stagewise Regularized Orthogonal Matching Pursuit (StROMP) is proposed in this paper to reconstruct images. Simulation results show that the proposed algorithm can effectively reduce the required storage storages and computational complexity, which improves the quality of reconstructed images in the premise of ensuring a shorter reconstruction time.

Keywords

Compressive Sensing; Matching Pursuit; Image Reconstruction

Full Text  Volume 8, Number 16